I want the back of my quilts to be as beautiful as the front, last as long,& be completely reversible. That's why I always use the same quality in the back as in the front..I only use muslin for practicing. I love the Kona solids even for my background in my hand applique projects. After all that work, who wants to use substandard musln unless you reaaly can't afford anything else. I would rather have one nice good quality quilt, than five that will fall apart after a few years!!!